Tivoli Storage Manager for Windows Administrator's Guide
Policy administrators use Tivoli Storage Manager policy to specify how
files are backed up, archived, migrated from client node storage, and managed
in server storage. Figure 42 shows the parts of a policy and the relationships among the
parts. You may refer to Example: Sample Policy Objects.
Figure 42. Tivoli Storage Manager Policy

- Backup copy group
- Controls how TSM performs backup processing of files associated with the
management class. A backup copy group determines the following:
- How frequently a file can be backed up
- How to handle files that are in use during a backup
- Where the server initially stores backup versions of files and directories
- How many backup versions the server keeps of files and directories
- How long the server keeps backup versions of files and directories, see Running Expiration Processing to Delete Expired Files for details
- Archive copy group
- Controls how TSM performs archive processing of files associated with the
management class. An archive copy group determines the following:
- Management class
- Associates backup and archive groups with files, and specifies if and how
client node files are migrated to storage pools. A management class can
contain one backup or archive copy group, both a backup and archive copy
group, or no copy groups. Users can bind (that is,
associate) their files to a management class through the include-exclude
list.
See More on Management Classes for details.
- Policy set
- Specifies the management classes that are available to groups of
users. Policy sets contain one or more management classes. You
must identify one management class as the default management
class. Only one policy set, the ACTIVE policy set, controls
policy operations.
- Policy domain
- Lets an administrator group client nodes by the policies that govern their
files and by the administrators who manage their policies. A policy
domain contains one or more policy sets, but only one policy set (named
ACTIVE) can be active at a time. The server uses only the ACTIVE policy
set to manage files for client nodes assigned to a policy domain.
You can use policy domains to:
- Group client nodes with similar file management requirements
- Provide different default policies for different groups of clients
- Direct files from different groups of clients to different storage
hierarchies based on need (different file destinations with different storage
characteristics)
- Restrict the number of management classes to which clients have access
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